When is the best time to go to Deer Isle
The chart above shows the best time of year to visit Deer Isle, United States. These are based on an analysis of weather averages such as temperature, rainfall and number of hours of sunshine. These ratings are based solely on the climate and do not take into account other factors such as accommodation prices and how busy it is likely to be.
Average temperatures in Deer Isle
Deer Isle weather by month
Please note our recommendations for when to visit Deer Isle are based solely on the weather and do not take into accounts accommodation prices, how busy it will be and what events are on.
January
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| -1°C | 102mm | 4.3hrs | 10.4hrs | 6°C |
The climate in Deer Isle during January can be summarized as cold and damp.
Based on weather alone, this is probably a time of year to avoid going to Deer Isle for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
January is in the winter in Deer Isle and is typically the coldest month of the year. Daytime maximum temperatures average around a freezing -1°C (30°F), whilst at night -12°C (11°F) is normal.
On average January is the driest month of the year in Deer Isle with around 102mm 4 inches of rain making it a damp time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.
On the flip side this corresponds to an average of 4.3 hours of sunshine per day.
Deer Isle weather in January »
February
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| -0°C | 87mm | 5.2hrs | 11.5hrs | 5°C |
February in Deer Isle is generally a little damp with the temperature being cold.
Based on weather alone, this is probably a time of year to avoid going to Deer Isle for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
February is in the winter in Deer Isle and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a freezing -0°C (32°F), whilst at night -11°C (12°F) is normal.
On average February is the 2nd driest month of the year in Deer Isle with around 87mm 3.4 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.2 hours of sunshine per day.
Deer Isle weather in February »
March
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 5°C | 100mm | 5.9hrs | 12.8hrs | 4°C |
The weather in March in Deer Isle is characteristically cool and damp.
Based on weather alone, this is probably a time of year to avoid going to Deer Isle for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
March is in the spring in Deer Isle and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cold 5°C (41°F), whilst at night -4°C (24°F) is normal.
On average March is the 3rd driest month of the year in Deer Isle with around 100mm 3.9 inches of rain making it a damp time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.9 hours of sunshine per day.
April
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 10°C | 100mm | 6.7hrs | 14.4hrs | 5°C |
Deer Isle's weather in April is typically cool and a little damp in nature.
Although outside the main holiday season, there is still plenty of fairly acceptable weather around this time of year. This makes it an okay time to visit Deer Isle.
April is in the spring in Deer Isle and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a cool 11°C (53°F), whilst at night 1°C (34°F) is normal.
On average April is the 4th driest month of the year in Deer Isle with around 100mm 3.9 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.7 hours of sunshine per day.
May
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 16°C | 98mm | 7.6hrs | 15.8hrs | 8°C |
May is a a little damp month in Deer Isle and the temperature is generally mild.
It is perhaps a good month to visit Deer Isle, with some inordinately good weather at this time of year.
May is in the spring in Deer Isle and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a cool 18°C (64°F), whilst at night 7°C (44°F) is normal.
On average May is the 5th driest month of the year in Deer Isle with around 98mm 3.9 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.6 hours of sunshine per day.
June
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 21°C | 88mm | 8.2hrs | 10.4hrs | 11°C |
Deer Isle's weather in June is typically mild and a little damp in nature.
It is perhaps the perfect month to visit Deer Isle, with some extremely good weather at this time of year.
June is in the summer in Deer Isle and is typically the 6th coldest month of the year. Daytime maximum temperatures average around 23°C (73°F), whilst at night 12°C (53°F) is normal.
On average June is the 6th driest month of the year in Deer Isle with around 88mm 3.5 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.2 hours of sunshine per day.
July
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 23°C | 81mm | 8.5hrs | 11.5hrs | 14°C |
July in Deer Isle is generally a little damp with the temperature being warm.
It is perhaps the perfect month to visit Deer Isle, with some inordinately good weather at this time of year.
July is in the summer in Deer Isle and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a muggy 26°C (79°F), whilst at night 15°C (59°F) is normal.
On average July is the 6th wettest month of the year in Deer Isle with around 81mm 3.2 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.5 hours of sunshine per day.
August
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 23°C | 77mm | 8.2hrs | 12.8hrs | 15°C |
The weather in August in Deer Isle is characteristically warm and reasonably dry.
It is perhaps the perfect month to visit Deer Isle, with some surprisingly good weather at this time of year.
August is in the summer in Deer Isle and is typically the 5th warmest month of the year. Daytime maximum temperatures average around 25°C (77°F), whilst at night 14°C (58°F) is normal.
On average August is the 5th wettest month of the year in Deer Isle with around 77mm 3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.2 hours of sunshine per day.
September
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 19°C | 99mm | 7.1hrs | 14.4hrs | 13°C |
Deer Isle's weather in September is typically mild and a little damp in nature.
It is perhaps the perfect month to visit Deer Isle, with some very good weather at this time of year.
September is in the fall / autumn in Deer Isle and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 21°C (69°F), whilst at night 10°C (50°F) is normal.
On average September is the 4th wettest month of the year in Deer Isle with around 99mm 3.9 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.1 hours of sunshine per day.
Deer Isle weather in September »
October
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 13°C | 104mm | 5.8hrs | 15.8hrs | 11°C |
October is a damp month in Deer Isle and the temperature is generally cool.
Although outside the main holiday season, there is still plenty of reasonably acceptable weather around this time of year. This makes it an okay time to visit Deer Isle.
October is in the fall / autumn in Deer Isle and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a cool 15°C (59°F), whilst at night 5°C (41°F) is normal.
On average October is the 3rd wettest month of the year in Deer Isle with around 104mm 4.1 inches of rain making it a damp time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.8 hours of sunshine per day.
Deer Isle weather in October »
November
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 7°C | 130mm | 4.1hrs | 10.4hrs | 9°C |
Cool and wet weather often prevails in Deer Isle during the month of November
Based on weather alone, this is probably a time of year to avoid going to Deer Isle for your holidays. The weather is often not a good and not conducive to spending time outdoors.
November is in the fall / autumn in Deer Isle and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a cold 8°C (47°F), whilst at night -0°C (32°F) is normal.
On average November is the 2nd wettest month of the year in Deer Isle with around 130mm 5.1 inches of rain making it a wet time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.
On the flip side this corresponds to an average of 4.1 hours of sunshine per day.
Deer Isle weather in November »
December
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 1°C | 123mm | 3.7hrs | 11.5hrs | 8°C |
December in Deer Isle is generally wet with the temperature being cold.
Based on weather alone, this is probably a time of year to avoid going to Deer Isle for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
December is in the winter in Deer Isle and is typically the warmest month of the year. Daytime maximum temperatures average around a freezing 1°C (34°F), whilst at night -9°C (17°F) is normal.
On average December is the wettest month of the year in Deer Isle with around 123mm 4.8 inches of rain making it a wet time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.
On the flip side this corresponds to an average of 3.7 hours of sunshine per day.
Other monthly averages
Deer Isle weather stats
| Hottest month: | July | 25.7°C 78.3°F |
|---|---|---|
| Driest month: | August | 77mm 3ins |
| Sunniest month: | August | 8.2hrs |
| Coldest month: | January | -1.6°C 29.1°F |
| Wettest month: | November | 130mm 5.1ins |
| Warmest sea: | August | 14.8°C 58.6°F |
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